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Finding the Fourth Proportional to 106,442.40, 159,663.60 and 94,461.60

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Solution

The fourth proportional to 106,442.40, 159,663.60 and 94,461.60 is: 141,692.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,442.40 : 159,663.60 = 94,461.60 : x
  2. Step 2: Convert to fraction form
    106,442.40/159,663.60 = 94,461.60/x
  3. Step 3: Cross multiply
    106,442.40x = 159,663.60 × 94,461.60
  4. Step 4: Simplify right side
    106,442.40x = 15,082,079,117.76
  5. Step 5: Solve for x
    x = 15,082,079,117.76/106,442.40
  6. Step 6: Final answer
    x = 141,692.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.